Heterogeneous nuclear ribonucleoprotein (hnRNP)-protein binding the poly(A) tail of mRNA and probably involved in some steps of pre-mRNA maturation. Interacts with the poly(A) tail of mRNA in nucleus. Relocalizes from nucleus to cytoplasmic stress granules (SGs) under heat stress. Constitutively expressed in leaves, roots, and stems. Belongs to the polyadenylate-binding RBP47 family.