Enables NAD-dependent histone deacetylase activity and protein kinase B binding activity. Involved in several processes, including cellular response to ketone; negative regulation of apoptotic process; and regulation of peptide hormone secretion. Located in cytosol; growth cone; and nucleus. Used to study middle cerebral artery infarction; obesity; osteoporosis; and type 2 diabetes mellitus. Biomarker of several diseases, including acute kidney failure; artery disease (multiple); impotence; non-alcoholic fatty liver disease; and obesity. Human ortholog(s) of this gene implicated in Huntington's disease and prostate cancer. Orthologous to human SIRT1 (sirtuin 1). [provided by Alliance of Genome Resources, Apr 2022]