Enables mRNA 3'-UTR binding activity. Involved in several processes, including cellular response to lipopolysaccharide; mRNA transport; and regulation of macromolecule biosynthetic process. Located in several cellular components, including centrosome; growth cone; and postsynaptic density. Used to study glioblastoma. Biomarker of portal hypertension and primary biliary cholangitis. Orthologous to human CPEB1 (cytoplasmic polyadenylation element binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]