Function
Zinc phosphodiesterase, which displays tRNA 3'-processing endonuclease activity (PubMed:12032089, PubMed:16118225, PubMed:18052196, PubMed:19411372). Involved in tRNA maturation, by removing a 3'-trailer from precursor tRNA (PubMed:12032089, PubMed:18052196, PubMed:19411372). Can use bis-(p-nitophenyl) phosphate (bpNPP) as substrate (PubMed:18052196). Involved in the processing of small nucleolar RNAs (snoRNAs) (PubMed:19420328).