JINN

Yes. "JINN" is in the ENABLE word list, accepted by Words With Friends and most open Scrabble apps. It scores 11 points in Scrabble and 15 points in Words With Friends.

In Scrabble, "JINN" is worth 11 points before bonuses. In Words With Friends, it's worth 15 points. Played on a triple-word-score, the Scrabble value becomes 33.

(Muslim demonology) A genie and descendant of the jann, normally invisible to the human eye, but who may also appear in animal or human form, equivalent to demons in Jewish demonology.

No, "JINN" has no anagrams in the ENABLE dictionary — it's the only word that can be formed from its exact letters.