Catalysis of the reaction: -C-terminal L-amino acid-glycyl-phosphatidylethanolamide + H2O = -C-terminal L-amino acid-glycine + a 1,2-diacyl-sn-glycero-3-phosphoethanolamine. An example of this reaction is the removal of ATG8 from membranes to which it is covalently linked to a phosphatidylethanolamid via its terminal glycine residue.
Atg8-specific protease activity