mle1/mle6 males are temperature sensitive. At 18oC no significant lethality or sterility is observed. At 25oC males are viable but sterile, sperm are fully formed but non-motile. At 29oC no males reach adulthood, they die during late third instar and pupal stages.
Presumed to encode a full length but inactive protein (T.R. Breen and J.C. Lucchesi, unpublished).