Is an ortholog of human HSP90AA1 (heat shock protein 90 alpha family class A member 1) and HSP90AB1 (heat shock protein 90 alpha family class B member 1). Exhibits several functions, including ATPase activity; glucocorticoid receptor binding activity; and protein phosphatase 5 binding activity. Is involved in several processes, including chemotaxis to cAMP; positive regulation of phosphoprotein phosphatase activity; and response to biotin. Localizes to perinuclear region of cytoplasm and protein-containing complex. Is expressed in several structures, including excretory system; germ line; intestine; nerve ring; and pharynx.