Broad specificity carboxypetidase that releases amino acids sequentially from the C-terminus, including neutral, aromatic, polar and basic residues, but not Pro, Gly, Asp and Glu. Release of a C-terminal amino acid with broad specificity, except for -Pro. Binds 1 cobalt ion per subunit. Can also utilize Mn(2+) (in vitro). Is not active with zinc ions. EDTA and DTT reversibly abolish carboxypeptidase activity. Optimum pH is 6.2-6.6. Optimum temperature is 90-100 degrees Celsius. Homodimer. Belongs to the peptidase M32 family.