TRMT5 transfers a methyl group from S-adenosylmethionine to the 1 position of guanosine-37 of tRNA(Phe) (Brulé et al. 2004, Christian et al. 2013). The yeast homolog, TRM5, catalyzes the same reaction.
tRNA (guanine-N1-)-methyltransferase activity of TRMT5 [nucleoplasm]