c++11 typedef function pointer with trailing return type

I have been trying to clean up an inherited code base. It makes extensive use of template functions that include a trailing return type. It also includes a lot of function pointers to non-templated, non-member functions. During the clean up I discovered that code equivalent to the following works under Visual Studio 2013:

#define function typedef auto

function Kernel (int, int) -> int;

struct Transform
{
    Kernel* kernel;
    char*   description;
};

Transform add_transform { add, "add" };

Is this typedef valid in the C++11 standard?

While I personally avoid #defines like the plague (especially when used to create a new language feature like these 'functions'), given the prevalence of trailing return types in the project the team feels this would make the code base significantly more readable.