Catalysis of the reaction: [protein]-C-terminal L-amino acid-glycyl-phosphatidylethanolamide + H2O = [protein]-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. [ http://www.ncbi.nlm.nih.gov/pubmed/28901328 http://www.ncbi.nlm.nih.gov/pubmed/22240591 http://www.ncbi.nlm.nih.gov/pubmed/22652539 http://www.ncbi.nlm.nih.gov/pubmed/2882172 http://www.ncbi.nlm.nih.gov/pubmed/28330855 ]