The primary function is to keep wayward space debris from damaging the ship.
J184.108.40.206 23:18, January 16, 2012 (UTC)
In laymans terms, it makes the shields work.
It's the emitter for the navigation shields, which, as mentioned above, is used to keep debris and particulate from hitting the ship, which would be especially dangerous at warp speeds. It also provides protection from low-level energy such as interstellar radiation and laser-based weapons. Depending on the ship, it could also be a part of the deflector shields used in combat.
RoboTrap 00:30, January 17, 2012 (UTC)
Nothing can hit a ship at warp, because the warp bubble "pushes" anything out of the way. It's high impulse you should be worried about.
220.127.116.11 12:31, January 17, 2012 (UTC)