Predicted to enable mRNA (nucleoside-2'-O-)-methyltransferase activity. Predicted to be involved in 7-methylguanosine mRNA capping; cap1 mRNA methylation; and cap2 mRNA methylation. Predicted to act upstream of or within mRNA processing. Predicted to be active in cytoplasm and nucleus. Is expressed in several structures, including alimentary system; brain; cardiovascular system; genitourinary system; and immune system. Orthologous to human CMTR2 (cap methyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]