label: 5'-(N(7)-methylguanosine 5'-triphospho)-[mRNA] hydrolase activity
label_lc: 5'-(n(7)-methylguanosine 5'-triphospho)-[mrna] hydrolase activity
description: "Catalysis of the reaction: a 5'-end (N7-methyl 5'-triphosphoguanosine)-ribonucleoside in mRNA + H2O = a 5'-end phospho-ribonucleoside in mRNA + N7-methyl-GDP + H+."