Enables protease binding activity and tumor necrosis factor-activated receptor activity. Involved in several processes, including cellular response to cytokine stimulus; cellular response to estrogen stimulus; and nervous system development. Located in several cellular components, including apical dendrite; apical plasma membrane; and sarcolemma. Part of CD95 death-inducing signaling complex. Used to study IgA glomerulonephritis; brain glioma; pre-malignant neoplasm; retinal detachment; and transient cerebral ischemia. Biomarker of several diseases, including abdominal obesity-metabolic syndrome 1; artery disease (multiple); brain ischemia (multiple); eye disease (multiple); and liver disease (multiple). Human ortholog(s) of this gene implicated in several diseases, including autoimmune disease (multiple); cystic fibrosis; hematologic cancer (multiple); pre-eclampsia (multiple); and urinary system cancer (multiple). Orthologous to human FAS (Fas cell surface death receptor). [provided by Alliance of Genome Resources, Apr 2022]