Is there a connector manufactured that converts one to a male end so that they can connect?
No.
If an electrical circuit is properly wired with connectors, the part of the circuit that is providing electrical power to a load will have a connector with female contacts or sockets. The part of the circuit that is the load and will consume electrical power will have a connector with male contacts or pins. Any configuration of wiring and connectors that allows the source of electrical power to be on exposed male pins is a serious error.
The branch circuit for the aft navigation lamp, which I presume is for a white all-round light, should be re-wired with appropriate connectors. Generally a two-pole connector is used. A very common and traditional choice is a two-pole rubber-body connector. You can find these under the SEA DOG brand:
http://www.sea-dog.com/groups/742-polarized-molded-electrical-connectoralthough some might complain these connectors ARE dogs. However they are very traditional.
Your description fails to elaborate on the type of connector you need. In many small boat installations the white all-round light is provided on a pole lamp, and the base of the pole contains an integral electrical connector.
Usually on a classic SPORT 15 the pole lamp had a cable exiting the bottom of the pole, the cable was perhaps a foot long, and the cable was terminated in a connector. It connected to another cable-end connector on the branch circuit for the navigation lighting.
If you give some more specifics about what sort of arrangement you have now or what arrangement you would like, an appropriate connector can be recommended.
Discussion of small boat electrical wiring is best conducted in the
SMALL BOAT ELECTRICAL forum. This topic has been moved there. The duplicate article you posted and created a second duplicate thread has been deleted. If you have a problem finding your posting, refresh your browser before you decide to post a duplicate.