Probable inactive 3'-5'-exoribonuclease. Is unable to complement the growth defect of a yeast mutant lacking RRP44 exonuclease (PubMed:24244451). Localizes to cytoplasmic foci. Belongs to the RNR ribonuclease family. DIS3L2 subfamily. The protein in cv. Landsberg erecta (AC P0DM58) and cv. Columbia only differ by one residue in position 705 (a Pro and Arg residue, respectively); this variation leading to inactivate the protein in cv. Columbia. Truncated N-terminus.