I think he seems a little deep to call with KJ and play for stacks on the flop with top pair, especially multi-way where BB can shove over your flop raise with 7x and you'd be really unhappy

I would call OTB, of course, but I don't like having bad relative position and possibly bad absolute position (very likely that other people enter the pot behind you at NL2) so I would either not enter this pot or I would just flat the flop and proceed carefully and maybe bet the turn if checked to

with this action I would just assume you're behind UTG's range since he probably wouldn't open worse than KJ UTG and you're basically hoping he has AsQs or TT-QQ