Ok so there is ~6.50 in the pot before his all in, 12$ or so in the pot now and its up to you to call an additional 5.60 more with top two pair?

At this limit i think it's a clear call getting 2:1 because a lot of players at 10NL will push the flop all in even facing reraises with TPGK. QJ, KJ, JT, are all very likely holdings. Minraising with a set of 2's or 5's is also a very common play though. I think its 50/50 that you are ahead or behind at this point and the pot odds justify a call if thats the case.