Can you fold a set on the river?

[Vee Quiva]

$33 on Party 10-15 blinds. No reads. 9 players left.

Hero has 5 [img]/images/graemlins/spade.gif[/img]5 [img]/images/graemlins/diamond.gif[/img] in small blind.

utg+1 call, utg+3 call, button calls, Hero completes, and BB checks.

75 in pot to flop. 5 players.
Flop: 10 [img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/diamond.gif[/img]

Hero bets 15. Everyone calls.
I was looking to reraise all in. I guess I was suffering from fancy play syndrome.

150 in pot. 5 players to turn.

Turn 9 [img]/images/graemlins/club.gif[/img]

I bet 125. BB folds. UTG plus 1 calls and UTG plus 3 calls. Button folds.

525 in pot to river. 3 players.

River 6 [img]/images/graemlins/spade.gif[/img]

I check. UTG + 1 bets 225. UTG+3 calls. Do you make this call?

Would a check have been better on the flop or should I have led out with a bigger bet?