Predicted to enable hormone activity and prolactin receptor binding activity. Acts upstream of or within response to hypoxia. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Is expressed in decidua; ectoplacental cone; extraembryonic 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]