How to run a self-write function in an access query?

Dear all experts,

I write a function in access and place it in module, let say:

fx_ReturnNumber (strTemp as string) as string
  Dim strTemp2 as string

  strTemp2 = strTemp & " -  Hello World"
 
  fx_ReturnNumber = strTemp2
End Function

If I can bind about function to my query, the result of the query will look like that

ABC - Hello World
CDE - Hello World
EEF - Hello World
...
..
..
..
XZX - Hello World

I've some query and want to use this function but I cannot include it, does anyone tell me how to accomplish this?  Thanks in advance.