Predicted to enable hormone activity and prolactin receptor binding activity. Predicted to be involved in several processes, including positive regulation of lactation; positive regulation of pri-miRNA transcription by RNA polymerase II; and positive regulation of receptor signaling pathway via JAK-STAT. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Is expressed in extraembryonic component; heart; inner ear vestibular component; and placenta. Human ortholog(s) of this gene implicated in carotid artery disease. Orthologous to human PRL (prolactin). [provided by Alliance of Genome Resources, Apr 2022]