Enables adenylate kinase activity. Contributes to nucleobase-containing compound kinase activity. Involved in several processes, including oxidative phosphorylation; purine nucleotide metabolic process; and response to thyroid hormone. Located in cytosol; mitochondrial intermembrane space; and nucleus. Biomarker of temporal lobe epilepsy. Human ortholog(s) of this gene implicated in reticular dysgenesis. Orthologous to human AK2 (adenylate kinase 2). [provided by Alliance of Genome Resources, Apr 2022]