Immunogen sequence: SQEILSIAAM MQIQNIFVVP PNQKSHAIRV HRKFAVEEGD HLTMLNIYEA FIKHNKDSKW CQEHFLNYKG LVRAATVREQ LKKLLVKFQV PRKSSEGDP Highest antigen sequence identity to the following orthologs: Mouse - 88%, Rat - 89%. May be involved in pre-mRNA splicing.