Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables receptor ligand activity. Involved in ERBB4-ERBB4 signaling pathway. Acts upstream of or within signal transduction. Is active in extracellular space. Is expressed in several structures, including embryo mesenchyme; integumental system; pancreas; surface ectoderm; and uterus. Orthologous to human NRG4 (neuregulin 4).