Immunogen sequence: KPPQGMEIKS NERCCSFDGD ADRIVYYYHD ADGHFHLIDG DKIATLISSF LKELLVEIGE SLNIGVVQTA YANGSSTRYL EEVMKVPVYC TKTGV Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 89%. Catalyzes the conversion of GlcNAc-6-P into