Bifunctional enzyme that catalyzes the post-translational modification of inactive peptidylglycine precursors to the corresponding bioactive alpha-amidated peptides, a terminal modification in biosynthesis of many neural and endocrine peptides (PubMed:2059626). Alpha-amidation involves two sequential reactions, both of which are catalyzed by separate catalytic domains of the enzyme. The first step, catalyzed by peptidyl alpha-hydroxylating monooxygenase (PHM) domain, is the copper-, ascorbate-, and O2- dependent stereospecific hydroxylation (with S stereochemistry) at the alpha-carbon (C-alpha) of the C-terminal glycine of the peptidylglycine substrate (PubMed:2059626). The second step, catalyzed by the peptidylglycine amidoglycolate lyase (PAL) domain, is the zinc-dependent cleavage of the N-C-alpha bond, producing the alpha-amidated peptide and glyoxylate (PubMed:2059626). Similarly, catalyzes the two-step conversion of an N-fatty acylglycine to a primary fatty acid amide and glyoxylate (By similarity). a [peptide]-C-terminal glycine + 2 L-ascorbate + O2 = a [peptide]-C-terminal (2S)-2-hydroxyglycine + H2O + 2 monodehydro-L-ascorbate radical a [peptide]-C-terminal (2S)-2-hydroxyglycine = a [peptide]-C-terminal amide + glyoxylate 2 L-ascorbate + N-dodecanoylglycine + O2 = H2O + 2 monodehydro-L-ascorbate radical + N-dodecanoyl-(2S)-hydroxyglycine N-dodecanoyl-(2S)-hydroxyglycine = dodecanamide + glyoxylate 2 L-ascorbate + N-(9Z,12Z,15Z)-octadecatrienoylglycine + O2 = H2O + 2 monodehydro-L-ascorbate radical + N-(9Z,12Z,15Z)-octadecatrienoyl-(2S)-hydroxyglycine N-(9Z,12Z,15Z)-octadecatrienoyl-(2S)-hydroxyglycine = (9Z,12Z,15Z)-octadecatrienamide + glyoxylate 2 L-ascorbate + N-(9Z-octadecenoyl)glycine + O2 = H2O + 2 monodehydro-L-ascorbate radical + N-(9Z-octadecenoyl)-(2S)-hydroxyglycine N-(9Z-octadecenoyl)-(2S)-hydroxyglycine = (9Z)-octadecenamide + glyoxylate 2 L-ascorbate + N-tetradecanoylglycine + O2 = H2O + 2 monodehydro-L-ascorbate radical + N-tetradecanoyl-(2S)-hydroxyglycine N-tetradecanoyl-(2S)-hydroxyglycine = glyoxylate + tetradecamide 2 L-ascorbate + N-decanoylglycine + O2 = H2O + 2 monodehydro-L-ascorbate radical + N-decanoyl-(2S)-hydroxyglycine N-decanoyl-(2S)-hydroxyglycine = decanamide + glyoxylate 2 L-ascorbate + N-octanoylglycine + O2 = H2O + 2 monodehydro-L-ascorbate radical + N-octanoyl-(2S)-hydroxyglycine N-octanoyl-(2S)-hydroxyglycine = glyoxylate + octanamide Binds one Zn(2+) ion per subunit. Binds 2 Cu(2+) ions per subunit. PAM activity is inhibited by EDTA, phenylglyoxal and diethyl pyrocarbonate (By similarity). PAL activity is stimulated by cadmium and inhibited by mercury (By similarity). Optimally active at acidic pHs. Monomer. Interacts with RASSF9. Secretory granules. In the C-terminal section; belongs to the peptidyl-alpha-hydroxyglycine alpha-amidating lyase family. In the N-terminal section; belongs to the copper type II ascorbate-dependent monooxygenase family.