Glycerophosphoryl diester phosphodiesterase hydrolyzes deacylated phospholipids to G3P and the corresponding alcohols. a sn-glycero-3-phosphodiester + H2O = an alcohol + H(+) + sn-glycerol 3-phosphate Binds 1 Ca(2+) ion per subunit. A possible member of the dormancy regulon. Induced in response to reduced oxygen tension (hypoxia). It is hoped that this regulon will give insight into the latent, or dormant phase of infection. Was identified as a high-confidence drug target. Belongs to the glycerophosphoryl diester phosphodiesterase family.