Who is Dhul Kifl?

I heard that some identify him with the prophet Ezekiel while others identify him with Melichzedek. There are also some who identify him with Job since he gets double his fortune as a reward for his faithfullness in God. I think the last option is the most likely because It doesn't make sense for the quran to mention this character without giving any details about his story. What do you think? (Except if his story was lost if we assumed that some portions of the quran were lost or if the audience were familiar with the story and the quran as a result isn't bothered to talk about him although I think this is unlikely)