Predicted to enable mRNA (nucleoside-2'-O-)-methyltransferase activity. Predicted to be involved in 7-methylguanosine mRNA capping and cap1 mRNA methylation. Predicted to act upstream of or within mRNA processing. Predicted to be located in nucleoplasm. Predicted to be active in cytoplasm and nucleus. Is expressed in central nervous system; olfactory epithelium; and retina. Orthologous to human CMTR1 (cap methyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]