DEAD-box RNA helicase. Probably has an RNA-dependent ATPase activity and a 3' to 5' RNA helicase activity that uses the energy of ATP hydrolysis to destabilize and unwind short RNA duplexes (By similarity). ATP + H2O = ADP + H(+) + phosphate Induced at 10 degrees Celsius. Wild-type growth rate at 10 and 30 degrees Celsius, no change upon exposure to H(2)O(2) or diamide.