Enables poly(A)-specific ribonuclease activity. Involved in nuclear-transcribed mRNA poly(A) tail shortening. Acts upstream of or within blastocyst formation. Located in endoplasmic reticulum. Is expressed in several structures, including early conceptus; gonad; and skin. Human ortholog(s) of this gene implicated in spermatogenic failure. Orthologous to human PNLDC1 (PARN like ribonuclease domain containing exonuclease 1). [provided by Alliance of Genome Resources, Apr 2022]