Term Name:	xylosylprotein 4-beta-galactosyltransferase activity
Synonyms:	galactosyltransferase I activity, UDP-D-galactose:D-xylose galactosyltransferase activity, UDP-D-galactose:xylose galactosyltransferase activity, UDP-galactose:O-beta-D-xylosylprotein 4-beta-D-galactosyltransferase activity, UDP-galactose:xylose galactosyltransferase activity, UDPgalactose:O-beta-D-xylosylprotein 4-beta-D-galactosyltransferase activity, uridine diphosphogalactose-xylose galactosyltransferase activity
Definition:	Catalysis of the reaction: UDP-galactose + O-beta-D-xylosylprotein = UDP + 4-beta-D-galactosyl-O-beta-D-xylosylprotein.
Ontology:	GO: Molecular Function [GO:0046525]    QuickGO    AmiGO