  We study the implications of the global $U(1)_R$ symmetry present in minimal
lepton flavor violating implementations of the seesaw mechanism for neutrino
masses. Our discussion is done in the context of explicit minimal type-I seesaw
scenarios, where depending on the R-charge assignment different models can be
constructed. We study the charged lepton flavor violating phenomenology of a
concrete realization paying special attention to $\mu\to e\gamma$ and $\mu\to
3e$.
