This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucose:galactosyl-lipopolysaccharide alpha-D-glucosyltransferase. Other names in common use include uridine diphosphoglucose-galactosylpolysaccharide, and glucosyltransferase.
References
Edstrom RD, Heath EC (1967). "The biosynthesis of cell wall lipopolysaccharide in Escherichia coli. VI. Enzymatic transfer of galactose, glucose, N-acetylglucosamine, and colitose into the polymer". J. Biol. Chem. 242 (16): 3581–8. PMID5341482.