Insoluble ammonium salts?

Most solubility rules I can find state that "most ammonium salts are highly soluble". I wonder if there are actually any insoluble salts containing the ammonium ion. An answer [here](https://chemistry.stackexchange.com/questions/8663/insoluble-group-i-ammonium-salts) states that ammonium diuranate is insoluble but it is downvoted and I couldn't verify that being true.
  
 If none of ammonium salts is soluble, can there be other ways of getting rid of ammonium ions in water? That is, precipitation or liberation as NH₃?


