Did William Sleator write about any LGBT characters?

[Cameron]

I just found out that William Sleator was gay.
He wrote Interstellar Pig and Singularity, books that my 5th grade English teacher read out loud to the class--I'm happy that I was hearing queer voices even before I was able to seek them out on my own.

I know William Sleator wrote gay stories for How Beautiful the Ordinary: Twelve Stories of Identity and Am I Blue?: Coming Out from the Silence, but I was wondering did he ever have any LGBT characters in his novels?

[Kaje]

Interesting question - I only know him from the short stories. You could look at his books here on GR and see if reviewers or lists tag them as LGBT

[Dani]

This takes a bit of out-of-the-box thinking, but one could argue that Moyna in Interstellar Pig is transgender. Moyna is a female, gas-filled octopus-like creature from Flaeioub, yet when visiting Earth, she assumes the male human persona of Manny using Disguise Selector equipment.

[Arimi]

Not a clue but now I feel like I need to read all his books to find out