Create Inherited Function via Object.create()

Question

suppose that I have this function

function test() {
    console.log('test');
}

test.property = 'testProperty';

And I want to extend the function object by doing

var extend = Object.create(test);

Well, the property from the function was correctly propagated

console.log(extend.property); // testProperty

But I can't extend the function test itself, nor access it via extend()

extend(); // TypeError: ext is not a function

Okay, I can just create new function with modified __proto__

function extend() {
    console.log('extended!');
}

extend.__proto__ = test;

extend(); // extended!
console.log(extend.property); // testProperty

But, editing __proto__ property is a slow operation, as per this Javascript MDN Documentation. So, is there any function like Object.create() that can I use to implement this kind of operation? Thanks.