Complex sentence: CoA ligase 4 is an enzyme of the long-chain fatty-acid-coenzyme A ligase family it converts free long-chain fatty acids into fatty acyl-CoA esters, and thereby play a key role in lipid biosynthesis and fatty acid degradation.
Split into simpler sentences: CoA ligase 4 is an enzyme of the long-chain fatty-acid-coenzyme A ligase family. It converts free long-chain fatty acids into fatty acyl-CoA esters, and thereby play a key role in lipid biosynthesis and fatty acid degradation.