Except the Designer seems to have modified everything in completely inconsequential ways in every species, and the inconsequential differences are less in species that we expect to be more closely related according to the theory of evolution (yes, it has predictive powers). A deficiency of an enzyme in one species can be corrected by introducing an enzyme with a slightly different amino acid sequence produced by an entirely different species. The function is the same. The theory of evolution would predict such inconsequential differences, ID or creationism would not.
Darwinian evolution, as propounded by Darwin himself, would not have had anything in particular to say about enzymes you know.
What you are talking about is something a tad more modern than that ~ an "evolved" version in fact ~ but is it better adapted to its environment?
Lord only knows.
Did you notice how there seem to be several layers to the information content of a single coded sequence in a single gene? Given that sequence's relationship with a different sequence on the same gene, or in the presence of some other enzyme, you get a wide variety of results.
Now, real quick, where's the seat of consciousness, and do single celled animals have one?