As for non-Leviticus anti-gay verses, here's a few:
Deuteronomy 23:14
For the LORD thy God walketh in the midst of thy camp, to deliver thee, and to give up thine enemies before thee; therefore shall thy camp be holy: that he see no unclean thing in thee, and turn away from thee.
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23:17 There shall be no ***** of the daughters of Israel, nor a sodomite of the sons of Israel.
1 Kings 14:24
And there were also sodomites in the land: and they did according to all the abominations of the nations which the LORD cast out before the children of Israel.
Romans 1 26:32
1:26 For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
1:27 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
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1:32 Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.
1 Corinithians 6:9
Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind,
Jude 7
Even as Sodom and Gomorrha, and the cities about them in like manner, giving themselves over to fornication, and going after strange flesh, are set forth for an example, suffering the vengeance of eternal fire.
8 Likewise also these filthy dreamers defile the flesh, despise dominion, and speak evil of dignities.