Predicted to enable sequence-specific double-stranded DNA binding activity. Predicted to be involved in pre-mRNA cleavage required for polyadenylation. Predicted to act upstream of or within mRNA processing. Predicted to be located in nucleoplasm. Predicted to be part of mRNA cleavage and polyadenylation specificity factor complex. Is expressed in several structures, including genitourinary system; midbrain ventricular layer; olfactory epithelium; submandibular gland primordium; and telencephalon. Orthologous to human CPSF4 (cleavage and polyadenylation specific factor 4). [provided by Alliance of Genome Resources, Apr 2022]