Enables RNA binding activity. Involved in cellular response to amino acid stimulus and response to ischemia. Located in several cellular components, including dendrite; endoplasmic reticulum; and postsynaptic density. Is expressed in several structures, including central nervous system; dorsal root ganglion; liver; lung; and sensory organ. Orthologous to human CPEB4 (cytoplasmic polyadenylation element binding protein 4). [provided by Alliance of Genome Resources, Apr 2022]