Predicted to enable ATP binding activity; lipoteichoic acid binding activity; and proton-transporting ATP synthase activity, rotational mechanism. Predicted to act upstream of or within defense response to bacterium; proton motive force-driven ATP synthesis; and proton transmembrane transport. Predicted to be located in membrane. Predicted to be part of proton-transporting ATP synthase complex, catalytic core F(1). Human ortholog(s) of this gene implicated in combined oxidative phosphorylation deficiency 22; mitochondrial complex V (ATP synthase) deficiency nuclear type 4A; and mitochondrial complex V (ATP synthase) deficiency nuclear type 4B. Orthologous to human ATP5F1A (ATP synthase F1 subunit alpha).