Immunogen sequence: TVQASESLKS GIITSDVGDL TLSKRGLRTS FTFRKVRQTP CNCSYPLVCD SQRKETPPSF PESDKEASRL EQEYVHQVYE EIAGHFSSTR Highest antigen sequence identity to the following orthologs: Mouse - 78%, Rat - 74%. Catalyzes the methylation of 5-carboxymethyl urid