Enables epidermal growth factor-activated receptor activity. Involved in several processes, including determination of adult lifespan; positive regulation of vulval development; and vulval cell fate specification. Located in cell-cell junction and plasma membrane. Expressed in several structures, including apoptotic cell; egg-laying apparatus; excretory duct cell; head; and vulval precursor cell. Human ortholog(s) of this gene implicated in several diseases, including carcinoma (multiple); hypertension (multiple); and reproductive organ cancer (multiple). Is an ortholog of human EGFR (epidermal growth factor receptor) and ERBB4 (erb-b2
receptor tyrosine kinase 4).