The enzyme glycerophosphoinositol glycerophosphodiesterase (EC 3.1.4.44) catalyzes the reaction

1-(sn-glycero-3-phospho)-1D-myoinositol + H₂O ${\displaystyle \rightleftharpoons }$ myo-inositol + sn-glycerol 3-phosphate

This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric diester bonds. The systematic name is 1-(sn-glycero-3-phospho)-1D-myo-inositol glycerophosphohydrolase. Other names in common use include sn-glycero(3)phosphoinositol glycerophosphohydrolase, and sn-glycero-3-phospho-1-inositol glycerophosphohydrolase.

• Dawson RM, Hemington N, Richards DE, Irvine RF (1979). "sn-Glycero(3)phosphoinositol glycerophosphohydrolase. A new phosphodiesterase in rat tissues". Biochem. J. 182 (1): 39–49. PMC 1161232. PMID 40550.