Predicted to enable hormone activity and prolactin receptor binding activity. Involved in several processes, including parturition; response to estradiol; and response to lipopolysaccharide. Located in extracellular region and secretory granule. Used to study portal hypertension and prolactinoma. Biomarker of hyperprolactinemia; prolactinoma; and renovascular hypertension. Human ortholog(s) of this gene implicated in carotid artery disease. Orthologous to human PRL (prolactin). [provided by Alliance of Genome Resources, Apr 2022]