Q9 hand...good fold or weak play?

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*in the dark, critique at will )

I'm calling the turn, possibly behind, ready to fold river UI. I'm putting the Button on some overpair, A-J with a Q, or worst-case scenario, possibly a made set with some PP. I'm thinking the MP1 is on some flush or str8 draw.

The way I figure, calling the turn is 12:1, and you are closing off betting as a perk. I estimate 3.5 - 4 outs (avoiding helping flush/str8 and implied added on river), 10.5 to 1, so call and fold if UI on river.

(Really trying to improve this part of my game, so if I'm off, please comment!)