RNA with Enzymatic activity is
Peptidase
Peptidyl transferase
Cytidine deaminase
Aminoacyl tRNASynthetase
Interestingly, some RNA molecules have intrinsic catalytic activity. The activity of these RNA enzymes, or ribozymes, often involves the cleavage of a nucleic acid. Two ribozymes are the peptidyl transferase that catalyzes peptide bond formation on the ribosome, and ribozymes involved in the RNA splicing.Ref: Harper&;s; 30th edition; Page no: 363
Metabolism of nucleic acids