Predicted to enable chromatin binding activity; histone deacetylase binding activity; and nucleic acid binding activity. Involved in mRNA transcription by RNA polymerase II and regulation of nucleobase-containing compound metabolic process. Acts upstream of or within regulation of mRNA stability. Located in synapse. Is expressed in several structures, including branchial arch; central nervous system; genitourinary system; gut; and hemolymphoid system gland. Orthologous to human HNRNPD (heterogeneous nuclear ribonucleoprotein D). [provided by Alliance of Genome Resources, Apr 2022]