Enables RNA transmembrane transporter activity and mRNA binding activity. Involved in mRNA transport. Located in several cellular components, including neuron projection; nucleus; and ribonucleoprotein granule. Part of messenger ribonucleoprotein complex. Is active in postsynaptic density. Biomarker of silicosis. Orthologous to human HNRNPA3 (heterogeneous nuclear ribonucleoprotein A3). [provided by Alliance of Genome Resources, Apr 2022]