peptide chain release factor N(5)-glutamine methyltransferase activity
peptide chain release factor n(5)-glutamine methyltransferase activity
Catalysis of the reaction: L-glutaminyl-[peptide chain release factor] + S-adenosyl-L-methionine = N(5)-methyl-L-glutaminyl-[peptide chain release factor] + S-adenosyl-L-homocysteine + H+.