Looking for a function room to host a cocktail party

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I am in search of a venue that has a private room where I can hold a nice cocktail party to celebrate my marriage. Nothing too fancy but nothing run down either. I will probably have 40-50 guests and would like to have hor'dourves and an open bar. Of course, I also don't want to break the bank. I am open to places both in Davis and outside. Gay friendly would be a plus. Does anyone have any recommendations?