quick noob question

I’ve just started using blender today–so far so good, but I can’t seem to find this tool, if it exists.
Basically, I have two triangular faces that share an edge but are not coplanar, and go between vertices A, B, C, and D. The shared edge is between points A and C. I want to rebuild it as two different triangular faces on the same vertices with a shared edge between B and D. Is there a tool that does that? I dimly recall a different 3D program calling it “turn edge” or something like that.

Select the edge and Ctrl+E / Rotate Edge ?

Excellent! Thank you. I knew there had to be something like that.