1,3-beta-galactosyl-N-acetylhexosamine phosphorylase () is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme characterised from Bifidobacterium bifidum are lacto-N-biose (β-D-galactopyranosyl-(1->3)-N-acetyl-D-glucosamine) and orthophosphate (Pi). Its products are galactose 1-phosphate and N-acetyl-D-glucosamine.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is beta-D-galactopyranosyl-(1->3)-N-acetyl-D-hexosamine:phosphate galactosyltransferase.
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