Metalloprotease that could be involved in the histone hyperacetylation pathway (PubMed:10383164). Releases a C-terminal amino acid, with preference for -Phe, -Leu, -Ile, -Met, -Tyr and -Val (PubMed:20385563). Binds 1 zinc ion per subunit. Inhibited by interaction with the metallocarboxypeptidase inhibitor (MCPI) from N.versicolor that binds to the catalytic zinc ion. Optimum pH is 8.5-9. Monomer. Interacts with LXN. Fetal expression in the adrenal gland, brain, heart, intestine, kidney, liver and lung. Except for fetal brain that shows no imprinting, expression was found preferentially from the maternal allele. Up-regulated by inhibitors of histone dacetylation. Belongs to the peptidase M14 family.