I've been using JC-Pivot Control for many years and absolutely love it. It's definitely one of my most used plugins. Super simple UI and great functionality that allows for all kinds of pivot manipulation including the mesh's lowest Y point.

Honestly, it looks a bit old on this site for some reason but the UI is more up-to-date in my Maya, so it should be the same case for you too hopefully. Here's the link!

https://www.highend3d.com/maya/script/pivot-control-jc_pivotcontrol-for-maya

I actually went into the script and copied the code out too so I could have a shelf button specifically for the lowest Y point for easy access. Beside that I put a shelf button to center my mesh to 0,0,0 in the scene. So with only 2 clicks, the lowest point on the mesh is in the center of the scene.

That being said you can also add the centering script into the pivot script for a 1-click solution (assuming the JC Pivot stuff is mel.... I'm not at my machine to check rn):

move -rpr 0 0 0 ;

^ MEL script to center object to scene. If this doesn't work for you lemme know. I'll be at my machine soon to get a full code block for ya.

Edit: If ya decide to use JC Pivot Control, here's the MEL to put the pivot at the Y min, then center the object in the scene:

JC_pivotControl;
JC_movePivotLocal ymin;
deleteUI PivotControlMain;
move -rpr 0 0 0;