Please see this comment. Also, I don’t know how exactly albinism works on the genetic level but it’s a recessive condition and those are often caused by loss-of-function mutations. I prefer the word “nonfunctional” rather than “dysfunctional” to describe genes and proteins in order to a avoid the appearance of a moral judgement (although albinism is harmful, especially without modern technology) but “nonfunction” isn’t a word.