In the future please mention stack size/blind size - those are really important.
You did not mention the buy in - which is important to put a general feel on the quality of the players.

For me personally - I do not like UTG limpers, a lot of times people with high PP limp UTG hoping for a raise and reraise.

I would check preflop and check the flop, and folded to any bet.

On the river you are in a sticky situation
If the pot is 1/3 of your stack and it will be split you risk your entire stack to win 1/6th of it - I would fold