glutathione gamma-glutamylcysteinyltransferase activity
Catalysis of the reaction: glutathione + Glu(-Cys)(n)-Gly = Gly + Glu(-Cys)(n+1)-Gly.
GO:0016755
aminoacyltransferase activity
is_a
phytochelatin synthase activity
narrow
SPAC3H1.10