Are peptidases enzymes?

Yes, peptidases are enzymes. Peptidases are a type of proteolytic enzyme that cleave peptide bonds in proteins by hydrolysis, breaking down the long chainlike protein molecules into shorter fragments or peptides, which are then further broken down into their components, amino acids. 

Peptidase enzymes are broken down into two categories - endopeptidases and exopeptidases - according to the location of the peptide bond cleavage. Endopeptidases cleave internal peptide bonds, while exopeptidases cleave the terminal peptide bonds in a peptide chain.