Enables coreceptor activity and protease binding activity. Involved in several processes, including positive regulation of transport; regulation of cytosolic calcium ion concentration; and regulation of neuron projection development. Located in several cellular components, including axonal growth cone; cytoplasmic vesicle; and neuronal cell body. Used to study diabetes mellitus. Biomarker of Alzheimer's disease; prostate carcinoma in situ; and sciatic neuropathy. Human ortholog(s) of this gene implicated in Alzheimer's disease; keratosis pilaris atrophicans; myocardial infarction; and sciatic neuropathy. Orthologous to human LRP1 (LDL receptor related protein 1). [provided by Alliance of Genome Resources, Apr 2022]