Predicted to enable tRNA (guanine-N7-)-methyltransferase activity. Predicted to be involved in RNA (guanine-N7)-methylation and tRNA methylation. Predicted to act upstream of or within methylation and tRNA processing. Predicted to be located in cytosol; nucleolus; and nucleoplasm. Predicted to be part of tRNA methyltransferase complex. Orthologous to human METTL1 (methyltransferase 1, tRNA methylguanosine). [provided by Alliance of Genome Resources, Apr 2022]