catalytic activity:UDP-N-acetyl-D-glucosamine + beta-D-glucuronosyl-(1->3)-beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl-proteoglycan = UDP + alpha-N-acetyl-D-glucosaminyl-(1->4)-beta-D-glucuronosyl-(1->3)-beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl-proteoglycan.,caution:It is uncertain whether Met-1, Met-6 or Met-20 is the initiator.,disease:Candidate gene for the breast cancer locus on chromosome 8p12-p22.,function:Probable glycosyltransferase.,online information:Exostosin-like 3,online information:GlycoGene database,pathway:Glycan metabolism; heparan sulfate biosynthesis.,similarity:Belongs to the glycosyltransferase 47 family.,tissue specificity:Ubiquitous.,
Endoplasmic reticulum membrane ; Single-pass type II membrane protein . Golgi apparatus .
Ubiquitous. Expressed in keratinocytes.