Enables adenosine deaminase activity and purine nucleoside binding activity. Involved in several processes, including adenosine metabolic process; negative regulation of circadian sleep/wake cycle, non-REM sleep; and response to vitamin E. Located in dendrite cytoplasm; extracellular space; and neuronal cell body. Used to study hypertension; peritonitis; and pulmonary edema. Biomarker of hyperglycemia; leptospirosis; lung disease; and trypanosomiasis. Human ortholog(s) of this gene implicated in adenosine deaminase deficiency; asthma; and severe combined immunodeficiency. Orthologous to human ADA (adenosine deaminase). [provided by Alliance of Genome Resources, Apr 2022]