In enzymology, a glucosylglycerol-phosphate synthase (EC 2.4.1.213) is an enzyme that catalyzes the chemical reaction

ADP-glucose + sn-glycerol 3-phosphate 2-(beta-D-glucosyl)-sn-glycerol 3-phosphate + ADP

Thus, the two substrates of this enzyme are ADP-glucose and sn-glycerol 3-phosphate, whereas its two products are 2-(beta-D-glucosyl)-sn-glycerol 3-phosphate and ADP.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is ADP-glucose:sn-glycerol-3-phosphate 2-beta-D-glucosyltransferase.

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• Marin K, Zuther E, Kerstan T, Kunert A, Hagemann M (1998). "The ggpS Gene from Synechocystis sp. Strain PCC 6803 Encoding Glucosyl-Glycerol-Phosphate Synthase Is Involved in Osmolyte Synthesis". J. Bacteriol. 180 (18): 4843–9. PMC 107508. PMID 9733686.