label: ABC-type vitamin B12 transporter activity
label_lc: abc-type vitamin b12 transporter activity
description: "Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: vitamin B12(out) + ATP + H2O = ADP + an vitamin B12(in) + H+ + phosphate. Vitamin B12 is alkylcob(III)alamin."