I know that the church has done that in the past with Anglican priests, but I thought that the Church did not accept the validity of Anglican Sacrament of Orders. Do you know if an Anglican Priest converting to Catholicism must be re-ordained by a Catholic bishop in order to function as a priest?
It does not.
"Do you know if an Anglican Priest converting to Catholicism must be re-ordained by a Catholic bishop in order to function as a priest?"
I'm pretty sure they do, but I'm also pretty sure it is a "formality" kind of ceremony (certainly validly sacramental, but not like having to go thru seminary again), since the academic requirements and training for the priesthood in both Anglicanism and Catholicism are so similar.
The place to find out for sure is the "Coming Home Network" website---http://www.chnetwork.org/. Their specific ministry is aiding non-Catholic priests and ministers who are converting to Roman Catholicism. The largest number of coverts (not surprisingly) are former Episcopalians.