Membrane dipeptidase (, renal dipeptidase, dehydropeptidase I (DPH I), dipeptidase, aminodipeptidase, dipeptide hydrolase, dipeptidyl hydrolase, nonspecific dipeptidase, glycosyl-phosphatidylinositol-anchored renal dipeptidase, MBD, MDP, leukotriene D<sub>4</sub> hydrolase) is an enzyme. This enzyme catalyses the following chemical reaction
This membrane-bound, zinc enzyme has broad specificity.
Inhibitors include bestatin and cilastatin.