Well, that's the question, all right.
Can a priest inclined toward sin serve faithfully? Can there be a priest who is not so inclined?
The Bible teaches that to lie with a man as with a woman is an abomination.
If you think about it, but don't do it, and you are heartily sorry before God, I think you can be a fine priest.
If you think God is wrong about this, and you aren't-that probably limits your priestly usefulness.
What are you referring too? Are you saying you can be gay and be sorry to God for being Gay, and make a fine priest?