Ive looked around but only found depfun() and which(). But is there a command that lists all functions in a toolbox (excluding dependencies)?
If you are just interested in a listing, why not consult the alphabetical list of functions in the documentation?
Then at the bottom of the page click MATLAB Functions, then at the top right click "Alphabetical List"
Failing that, you can simply use
at the command line to see the list of functions in categorical form.