Enables anion binding activity; glutathione synthase activity; and identical protein binding activity. Involved in several processes, including glutathione biosynthetic process; response to amino acid; and response to tumor necrosis factor. Located in cytosol. Human ortholog(s) of this gene implicated in Alzheimer's disease; glutathione synthetase deficiency; and hemolytic anemia due to glutathione synthetase deficiency. Orthologous to human GSS (glutathione synthetase). [provided by Alliance of Genome Resources, Apr 2022]