Predicted to enable prostaglandin E receptor activity. Involved in several processes, including T-helper cell differentiation; regulation of cytokine production; and regulation of stress fiber assembly. Acts upstream of or within several processes, including cellular response to mechanical stimulus; regulation of ossification; and response to lipopolysaccharide. Predicted to be located in neuron projection terminus; neuronal cell body; and nuclear membrane. Predicted to be active in plasma membrane. Is expressed in central nervous system; early conceptus; heart valve; retina; and secondary oocyte. Used to study dilated cardiomyopathy. Human ortholog(s) of this gene implicated in ankylosing spondylitis; arteriosclerosis; and ulcerative colitis. Orthologous to human PTGER4 (prostaglandin E receptor 4). [provided by Alliance of Genome Resources, Apr 2022]