Enables identical protein binding activity; nitric-oxide synthase regulator activity; and protein folding chaperone. Involved in several processes, including axonogenesis; positive regulation of nitrogen compound metabolic process; and positive regulation of protein kinase B signaling. Located in several cellular components, including growth cone; neuronal cell body; and ruffle membrane. Part of protein-containing complex. Is expressed in several structures, including 1st branchial arch; alimentary system; eye; genitourinary system; and nervous system. Orthologous to human HSP90AA1 (heat shock protein 90 alpha family class A member 1). [provided by Alliance of Genome Resources, Apr 2022]