UDP-glucose:hexose-1-phosphate uridylyltransferase activity https://github.com/geneontology/go-ontology/issues/30193 molecular_function UDP-glucose-hexose-1-phosphate uridylyltransferase activity uridyl transferase activity uridylyl removing enzyme activity UDP-glucose:alpha-D-galactose-1-phosphate uridylyltransferase activity Reactome:R-HSA-70361 UDPglucose-hexose-1-phosphate uridylyltransferase activity Gal-1-P uridylyltransferase activity galactose-1-phosphate uridylyltransferase activity UDPglucose:alpha-D-galactose-1-phosphate uridylyltransferase activity Reactome:R-HSA-5610038 hexose-1-phosphate uridylyltransferase activity EC:2.7.7.12 uridyltransferase activity hexose 1-phosphate uridyltransferase activity KEGG_REACTION:R00955 Catalysis of the reaction: alpha-D-galactose 1-phosphate + UDP-D-glucose = alpha-D-glucose 1-phosphate + UDP-D-galactose. RHEA:13989 GO:0008108 MetaCyc:GALACTURIDYLYLTRANS-RXN uridylyltransferase activity