3'-5'-exoribonuclease that specifically recognizes RNAs polyuridylated at their 3' end and mediates their degradation. Component of an exosome-independent RNA degradation pathway that mediates degradation of cytoplasmic mRNAs that have been deadenylated and subsequently uridylated at their 3' (Probable). Widely expressed. Belongs to the RNR ribonuclease family. DIS3L2 subfamily. The protein in cv. Landsberg erecta and cv. Columbia (AC Q0WPN0) only differ by one residue in position 705 (a Pro and Arg residue, respectively); this variation leading to inactivate the protein in cv. Columbia (AC Q0WPN0).