Wheat malt is made from red wheat, which is just a different variety than white wheat.
White wheat has slightly lower protein, and, ironically, a slighter higher srm. White wheat also has a bit less diastatic power, although it's still plenty high.
I think you won't notice a huge difference. I have used them interchangeably before, and depending on your recipe, any noticeable differences will likely be diminished by what the other ingredients bring to the table.