How can I access the view function in a Django template tag?
A view function doesn't have any special status in Django.
A template can be rendered anywhere: in a view, inside a templatetag, in a model method, in a utility function... so it's not even clear what you would want to access. But in any case, the general principle is that if you want access to something in a template, you should pass it into the template context.
What it says on the tin: I want to be able to access either:

the view function itself
the view name (although this is less useful, I can probably use it to get back to the function)
attributes of the view function

This needs to be accessed from within a template tag.
In short, what I'm trying to do is to mark up view functions with information that can be used by my base template to configure some of the view framing UI; set the title, for example, or populate a generic help object.  If someone can suggest a better way to do this, please feel free to provide that answer instead.