Enables single-stranded DNA 5'-3' exodeoxyribonuclease activity. Involved in regulation of cytokine production involved in inflammatory response. Located in late endosome membrane and lysosomal membrane. Is expressed in several structures, including alimentary system; cardiovascular system; genitourinary system; nervous system; and sensory organ. Human ortholog(s) of this gene implicated in spinocerebellar ataxia 46. Orthologous to human PLD3 (phospholipase D family member 3). [provided by Alliance of Genome Resources, Apr 2022]