In enzymology, a D-alanine gamma-glutamyltransferase () is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are L-glutamine and D-alanine, whereas its two products are NH<sub>3</sub> and gamma-L-glutamyl-D-alanine.
This enzyme belongs to the family of transferases, specifically the aminoacyltransferases. The systematic name of this enzyme class is L-glutamine:D-alanine gamma-glutamyltransferase.