Enables mRNA 3'-UTR AU-rich region binding activity. Involved in several processes, including 3'-UTR-mediated mRNA destabilization; cellular response to organonitrogen compound; and intracellular signal transduction. Acts upstream of or within several processes, including chordate embryonic development; circulatory system development; and proepicardium development. Located in cytoplasm and nucleus. Part of ribonucleoprotein complex. Is expressed in several structures, including alimentary system; brain; genitourinary system; sensory organ; and spinal cord. Orthologous to human ZFP36L1 (ZFP36 ring finger protein like 1). [provided by Alliance of Genome Resources, Apr 2022]