Seems is one of several mounting points for bracket(s) to trans mount(s) to the frame/cradle in the car.
Most brackets use 2 or 3 bolts to trans case.
Depending how bad the damage there and what's right behind...
Could weld the part to get another trans.
Most Epoxies doesn't work well or at all w/ aluminum. Might seem to stick but many fails days to months later and more so when used on high stress areas.
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
The Ogre's Fiero Cave