IMO, in order for the selection to make the most sense at #13 the Rams would have to use him the same way I envisioned Bowers a few years back.
And that is as a potential Kyle Juszczyk, Sam Laporta, and Debo Samuel rolled into one that leans more towards a positionless football ideology on offense. He'd be a FB, H-Back, Slot, TE, X, Y, Z...12345. depending upon the play.
That would be a matchup nightmare for opposing defenses not only due to the confusion and his physical attributes, but most importantly because he blocks so darn well.
Without that creativity the Rams should probably just pass on him.