If UTG is a gambling 'fish', then why are we folding? And if we are folding to a limp-raise, than why are we min-raising?
A suited ace with two boardways and a nine plays well, whether multiways or HU, so why are we using the fear of further calls from behind as a justification for the fold?
And if we really don't want to play bloated pots OOP multiways, even with a near premium hand, than why the min-raise, which encourges loose calls from behind, rather than a pot raise to isolate the gambing fish?
I am confused by your logic.
Calling is the least you can do against what you described as a gambling fish, and 4 betting to isolate all dayu long as you have both the A and the K blockers, against a player that ought to have a very wide limp-raise range/calling 4 bet range according to your description.
Of course, you might be trapped by bad aces further behind...but in the unlikely case that you are, you can still suck out....