The protein encoded by this gene is a 3′-exoribonuclease, with similarity to the RNase D family of 3′-exonucleases. It prefers poly(A) as the substrate, hence, efficiently degrades poly(A) tails of mRNAs. Exonucleolytic degradation of the poly(A) tail is often the first step in the decay of eukaryotic mRNAs.

For more information: parn antibody